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Single-phase uninterruptible power supply circuit and charging and discharging control method thereof

A charge and discharge control and power supply circuit technology, applied in the field of uninterruptible power supply control, can solve problems such as difficult to realize fast switching between charge mode and discharge mode

Pending Publication Date: 2022-06-28
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the charging module and discharging module inside most uninterruptible power supplies are separated, and it is difficult to realize fast switching between charging mode and discharging mode

Method used

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  • Single-phase uninterruptible power supply circuit and charging and discharging control method thereof
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  • Single-phase uninterruptible power supply circuit and charging and discharging control method thereof

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Embodiment Construction

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] The term "and / or" in this embodiment of the present application is only an association relationship to describe associated objects, indicating that there may be three kinds of relationships, for example, A and / or B, which may indicate that A exists alone, and A and B exist at the same time. , there are three cases of B alone....

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Abstract

The embodiment of the invention provides a single-phase uninterruptible power supply circuit and a charging and discharging control method thereof. An uninterruptible power supply mainly comprises a controllable rectification module, a storage battery charging and discharging module and an inversion voltage stabilization module. A storage battery charging and discharging module needs to be switched between a charging mode and a discharging mode in time, uninterrupted power supply of a load is achieved, and high control requirements are provided for a charging and discharging control system in the uninterruptible power supply. A storage battery usually stores electric energy in a direct current mode, and a load usually adopts an alternating current power supply mode. Therefore, in order to ensure reliable power supply in an emergency, the storage battery charging and discharging module and the inversion voltage stabilization module need to be mutually matched for control, and direct current stored in the storage battery is timely converted into alternating current meeting requirements to be output.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of uninterruptible power supply control, and in particular, to a single-phase uninterruptible power supply circuit and a charging and discharging control method thereof. Background technique [0002] For some important electrical loads, the power supply system needs to be equipped with an uninterruptible power supply to ensure the reliability of the load power supply. The uninterruptible power supply is internally equipped with a corresponding number of battery packs, which can still provide sufficient power to provide emergency power supply for key equipment when the power grid is powered off. Under the normal power supply of the power grid, the battery charging and discharging system inside the uninterruptible power supply can convert the AC power of the power grid into DC power and store it in the battery bank for emergency use. In the event of a sudden power failure in the power gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J9/06
CPCH02J7/0068H02J7/0047H02J7/00714H02J7/007182H02J7/00712H02J9/062
Inventor 邹剑桥黄敏
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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